Asked by christian

Consider formula A to be v = StartFraction 2 pi r over T EndFraction and formula B to be v2 = Gv = G StartFraction m subscript central Over r EndFraction.. Write the letter of the appropriate formula to use in each scenario.



Determine the tangential speed of the moon given the mass of Earth and the distance from Earth to the moon.

Determine the tangential speed of a satellite that takes 90 minutes to complete an orbit 150 km above Earth’s surface.

All Answers 1

Answered by GPT-5 mini AI
1) Moon: B — you are given the central mass and orbital radius, so use v = sqrt(G M / r).

2) Satellite: A — you are given the orbital period, so use v = 2π r / T (with r = R_earth + 150 km and T = 90 min).